0x11 to halt the emulator. */
#include "config.h"
+#include "ansidecl.h"
#include <time.h>
#include <errno.h>
#endif
#define UNIQUETEMPS 256
-#ifndef NOOS
-static void UnwindDataAbort (ARMul_State * state, ARMword addr);
-static void getstring (ARMul_State * state, ARMword from, char *to);
-#endif
-
/***************************************************************************\
* OS private Information *
\***************************************************************************/
#define FIXCRLF(t,c) c
#endif
-static ARMword softvectorcode[] = { /* basic: swi tidyexception + event; mov pc, lr;
- ldmia r11,{r11,pc}; swi generateexception + event
- */
+static ARMword softvectorcode[] =
+{ /* basic: swi tidyexception + event; mov pc, lr;
+ ldmia r11,{r11,pc}; swi generateexception + event. */
0xef000090, 0xe1a0e00f, 0xe89b8800, 0xef000080, /*Reset */
0xef000091, 0xe1a0e00f, 0xe89b8800, 0xef000081, /*Undef */
0xef000092, 0xe1a0e00f, 0xe89b8800, 0xef000082, /*SWI */
0xef000094, 0xe1a0e00f, 0xe89b8800, 0xef000084, /*Data abort */
0xef000095, 0xe1a0e00f, 0xe89b8800, 0xef000085, /*Address exception */
0xef000096, 0xe1a0e00f, 0xe89b8800, 0xef000086, /*IRQ*/
- 0xef000097, 0xe1a0e00f, 0xe89b8800, 0xef000087, /*FIQ*/
- 0xef000098, 0xe1a0e00f, 0xe89b8800, 0xef000088, /*Error */
+ 0xef000097, 0xe1a0e00f, 0xe89b8800, 0xef000087, /*FIQ*/
+ 0xef000098, 0xe1a0e00f, 0xe89b8800, 0xef000088, /*Error */
0xe1a0f00e /* default handler */
};
ARMul_WriteWord (state, 4, FPENEWVECT (ARMul_ReadWord (state, i - 4))); /* install new vector */
ARMul_ConsolePrint (state, ", FPE");
-/* #endif /* ASIM */
+/* #endif ASIM */
#endif /* VALIDATE */
#endif /* NOOS */
return ((struct OSblock *) state->OSptr)->ErrorP;
}
-#if 1 /* CYGNUS LOCAL */
-/* This is the cygnus way of doing it, which makes it simple to do our tests */
-
static int translate_open_mode[] = {
O_RDONLY, /* "r" */
O_RDONLY + O_BINARY, /* "rb" */
int flags;
int i;
- for (i = 0; dummy[i] = ARMul_ReadByte (state, name + i); i++)
+ for (i = 0; (dummy[i] = ARMul_ReadByte (state, name + i)); i++)
;
/* Now we need to decode the Demon open mode */
if (local == NULL)
{
- fprintf (stderr, "sim: Unable to read 0x%x bytes - out of memory\n",
+ fprintf (stderr, "sim: Unable to read 0x%ulx bytes - out of memory\n",
len);
return;
}
{
struct OSblock *OSptr = (struct OSblock *) state->OSptr;
int res;
- int i;
+ ARMword i;
char *local = malloc (len);
if (local == NULL)
{
- fprintf (stderr, "sim: Unable to write 0x%x bytes - out of memory\n",
- len);
+ fprintf (stderr, "sim: Unable to write 0x%lx bytes - out of memory\n",
+ (long) len);
return;
}
}
addr = lseek (fh, 0, SEEK_CUR);
- if (addr < 0)
- state->Reg[0] = -1L;
- else
- {
- state->Reg[0] = lseek (fh, 0L, SEEK_END);
- (void) lseek (fh, addr, SEEK_SET);
- }
+
+ state->Reg[0] = lseek (fh, 0L, SEEK_END);
+ (void) lseek (fh, addr, SEEK_SET);
OSptr->ErrorNo = errno;
}
unsigned
ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
{
- ARMword addr, temp, fildes;
- char buffer[BUFFERSIZE], *cptr;
- FILE *fptr;
+ ARMword addr, temp;
struct OSblock *OSptr = (struct OSblock *) state->OSptr;
switch (number)
else
state->Reg[0] = -1;
state->Emulate = FALSE;
- return (TRUE);
+ return TRUE;
case ADP_Stopped_ApplicationExit:
state->Reg[0] = 0;
}
}
-#else /* CYGNUS LOCAL: #if 1 */
-
-unsigned
-ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
-{
-#ifdef NOOS
- return (FALSE);
-#else
-#ifdef VALIDATE
- switch (number)
- {
- case 0x11:
- state->Emulate = FALSE;
- return (TRUE);
- case 0x01:
- if (ARM32BITMODE)
- ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x13);
- else
- ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x3);
- return (TRUE);
- default:
- return (FALSE);
- }
-#else
- ARMword addr, temp;
- char buffer[BUFFERSIZE], *cptr;
- FILE *fptr;
- struct OSblock *OSptr = (struct OSblock *) state->OSptr;
-
- switch (number)
- {
- case SWI_WriteC:
- (void) fputc ((int) state->Reg[0], stderr);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Write0:
- addr = state->Reg[0];
- while ((temp = ARMul_ReadByte (state, addr++)) != 0)
- fputc ((char) temp, stderr);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_ReadC:
- state->Reg[0] = (ARMword) fgetc (stdin);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_CLI:
- addr = state->Reg[0];
- getstring (state, state->Reg[0], buffer);
- state->Reg[0] = (ARMword) system (buffer);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_GetEnv:
- state->Reg[0] = ADDRCMDLINE;
- if (state->MemSize)
- state->Reg[1] = state->MemSize;
- else
- state->Reg[1] = ADDRUSERSTACK;
-
- addr = state->Reg[0];
- cptr = state->CommandLine;
- if (cptr == NULL)
- cptr = "\0";
- do
- {
- temp = (ARMword) * cptr++;
- ARMul_WriteByte (state, addr++, temp);
- }
- while (temp != 0);
- return (TRUE);
-
- case SWI_Exit:
-#ifdef ASIM
- simkernel1_abort_run ();
-#else
- state->Emulate = FALSE;
-#endif
- return (TRUE);
-
- case SWI_EnterOS:
- if (ARM32BITMODE)
- ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x13);
- else
- ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x3);
- return (TRUE);
-
- case SWI_GetErrno:
- state->Reg[0] = OSptr->ErrorNo;
- return (TRUE);
-
- case SWI_Clock:
- /* return muber of centi-seconds... */
- state->Reg[0] =
-#ifdef CLOCKS_PER_SEC
- (CLOCKS_PER_SEC >= 100)
- ? (ARMword) (clock () / (CLOCKS_PER_SEC / 100))
- : (ARMword) ((clock () * 100) / CLOCKS_PER_SEC);
-#else
- /* presume unix... clock() returns microseconds */
- (ARMword) (clock () / 10000);
-#endif
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Time:
- state->Reg[0] = (ARMword) time (NULL);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Remove:
- getstring (state, state->Reg[0], buffer);
- state->Reg[0] = unlink (buffer);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Rename:
- {
- char buffer2[BUFFERSIZE];
-
- getstring (state, state->Reg[0], buffer);
- getstring (state, state->Reg[1], buffer2);
- state->Reg[0] = rename (buffer, buffer2);
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
-
- case SWI_Open:
- {
-#if 0
- /* It seems to me that these are in the wrong order
- sac@cygnus.com, so I've redone it to use the
- flags instead, with the functionality which was already
- there -- ahh, perhaps the TRUNC bit is in a different
- place on the original host ? */
- static char *fmode[] = { "r", "rb", "r+", "r+b",
- "w", "wb", "w+", "w+b",
- "a", "ab", "a+", "a+b",
- "r", "r", "r", "r"
- } /* last 4 are illegal */ ;
-#endif
-
- unsigned type;
-
- type = (unsigned) (state->Reg[1] & 3L);
- getstring (state, state->Reg[0], buffer);
- if (strcmp (buffer, ":tt") == 0 && (type == O_RDONLY)) /* opening tty "r" */
- fptr = stdin;
- else if (strcmp (buffer, ":tt") == 0 && (type == O_WRONLY)) /* opening tty "w" */
- fptr = stderr;
- else
- {
- switch (type)
- {
- case O_RDONLY:
- fptr = fopen (buffer, "r");
- break;
- case O_WRONLY:
- fptr = fopen (buffer, "w");
- break;
- case O_RDWR:
- fptr = fopen (buffer, "rw");
- break;
- }
- }
-
- state->Reg[0] = 0;
- if (fptr != NULL)
- {
- for (temp = 0; temp < FOPEN_MAX; temp++)
- if (OSptr->FileTable[temp] == NULL)
- {
- OSptr->FileTable[temp] = fptr;
- OSptr->FileFlags[temp] = type & 1; /* preserve the binary bit */
- state->Reg[0] = (ARMword) (temp + 1);
- break;
- }
- if (state->Reg[0] == 0)
- OSptr->ErrorNo = EMFILE; /* too many open files */
- else
- OSptr->ErrorNo = errno;
- }
- else
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
-
- case SWI_Close:
- temp = state->Reg[0];
- if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- temp--;
- fptr = OSptr->FileTable[temp];
- if (fptr == stdin || fptr == stderr)
- state->Reg[0] = 0;
- else
- state->Reg[0] = fclose (fptr);
- OSptr->FileTable[temp] = NULL;
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Write:
- {
- unsigned size, upto, type;
- char ch;
-
- temp = state->Reg[0];
- if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- temp--;
- fptr = OSptr->FileTable[temp];
- type = OSptr->FileFlags[temp];
- addr = state->Reg[1];
- size = (unsigned) state->Reg[2];
-
- if (type & READOP)
- fseek (fptr, 0L, SEEK_CUR);
- OSptr->FileFlags[temp] = (type & BINARY) | WRITEOP;;
- while (size > 0)
- {
- if (size >= BUFFERSIZE)
- upto = BUFFERSIZE;
- else
- upto = size;
- for (cptr = buffer; (cptr - buffer) < upto; cptr++)
- {
- ch = (char) ARMul_ReadByte (state, (ARMword) addr++);
- *cptr = FIXCRLF (type, ch);
- }
- temp = fwrite (buffer, 1, upto, fptr);
- if (temp < upto)
- {
- state->Reg[0] = (ARMword) (size - temp);
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
- size -= upto;
- }
- state->Reg[0] = 0;
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
-
- case SWI_Read:
- {
- unsigned size, upto, type;
- char ch;
-
- temp = state->Reg[0];
- if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- temp--;
- fptr = OSptr->FileTable[temp];
- addr = state->Reg[1];
- size = (unsigned) state->Reg[2];
- type = OSptr->FileFlags[temp];
-
- if (type & WRITEOP)
- fseek (fptr, 0L, SEEK_CUR);
- OSptr->FileFlags[temp] = (type & BINARY) | READOP;;
- while (size > 0)
- {
- if (isatty_ (fptr))
- {
- upto = (size >= BUFFERSIZE) ? BUFFERSIZE : size + 1;
- if (fgets (buffer, upto, fptr) != 0)
- temp = strlen (buffer);
- else
- temp = 0;
- upto--; /* 1 char used for terminating null */
- }
- else
- {
- upto = (size >= BUFFERSIZE) ? BUFFERSIZE : size;
- temp = fread (buffer, 1, upto, fptr);
- }
- for (cptr = buffer; (cptr - buffer) < temp; cptr++)
- {
- ch = *cptr;
- ARMul_WriteByte (state, (ARMword) addr++, FIXCRLF (type, ch));
- }
- if (temp < upto)
- {
- state->Reg[0] = (ARMword) (size - temp);
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
- size -= upto;
- }
- state->Reg[0] = 0;
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
-
- case SWI_Seek:
- if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
- || OSptr->FileTable[state->Reg[0] - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- fptr = OSptr->FileTable[state->Reg[0] - 1];
- state->Reg[0] = fseek (fptr, (long) state->Reg[1], SEEK_SET);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_Flen:
- if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
- || OSptr->FileTable[state->Reg[0] - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- fptr = OSptr->FileTable[state->Reg[0] - 1];
- addr = (ARMword) ftell (fptr);
- if (fseek (fptr, 0L, SEEK_END) < 0)
- state->Reg[0] = -1;
- else
- {
- state->Reg[0] = (ARMword) ftell (fptr);
- (void) fseek (fptr, addr, SEEK_SET);
- }
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_IsTTY:
- if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
- || OSptr->FileTable[state->Reg[0] - 1] == 0)
- {
- OSptr->ErrorNo = EBADF;
- state->Reg[0] = -1L;
- return (TRUE);
- }
- fptr = OSptr->FileTable[state->Reg[0] - 1];
- state->Reg[0] = isatty_ (fptr);
- OSptr->ErrorNo = errno;
- return (TRUE);
-
- case SWI_TmpNam:
- {
- ARMword size;
-
- addr = state->Reg[0];
- temp = state->Reg[1] & 0xff;
- size = state->Reg[2];
- if (OSptr->tempnames[temp] == NULL)
- {
- if ((OSptr->tempnames[temp] = malloc (L_tmpnam)) == NULL)
- {
- state->Reg[0] = 0;
- return (TRUE);
- }
- (void) tmpnam (OSptr->tempnames[temp]);
- }
- cptr = OSptr->tempnames[temp];
- if (strlen (cptr) > state->Reg[2])
- state->Reg[0] = 0;
- else
- do
- {
- ARMul_WriteByte (state, addr++, *cptr);
- }
- while (*cptr++ != 0);
- OSptr->ErrorNo = errno;
- return (TRUE);
- }
-
- case SWI_InstallHandler:
- {
- ARMword handlerp = ADDRSOFHANDLERS + state->Reg[0] * 8;
- ARMword oldr1 = ARMul_ReadWord (state, handlerp),
- oldr2 = ARMul_ReadWord (state, handlerp + 4);
- ARMul_WriteWord (state, handlerp, state->Reg[1]);
- ARMul_WriteWord (state, handlerp + 4, state->Reg[2]);
- state->Reg[1] = oldr1;
- state->Reg[2] = oldr2;
- return (TRUE);
- }
-
- case SWI_GenerateError:
- ARMul_Abort (state, ARMSWIV);
- if (state->Emulate)
- ARMul_SetR15 (state,
- ARMul_ReadWord (state, ADDRSOFTVECTORS + ARMErrorV));
- return (TRUE);
-
-/* SWI's 0x9x unwind the state of the CPU after an abort of type x */
-
- case 0x90: /* Branch through zero */
- {
- ARMword oldpsr = ARMul_GetCPSR (state);
- ARMul_SetCPSR (state, (oldpsr & 0xffffffc0) | 0x13);
- ARMul_SetSPSR (state, SVC32MODE, oldpsr);
- state->Reg[14] = 0;
- goto TidyCommon;
- }
-
- case 0x98: /* Error */
- {
- ARMword errorp = state->Reg[0], regp = state->Reg[1];
- unsigned i;
- ARMword errorpsr = ARMul_ReadWord (state, regp + 16 * 4);
- for (i = 0; i < 15; i++)
- ARMul_SetReg (state, errorpsr, i,
- ARMul_ReadWord (state, regp + i * 4L));
- state->Reg[14] = ARMul_ReadWord (state, regp + 15 * 4L);
- state->Reg[10] = errorp;
- ARMul_SetSPSR (state, state->Mode, errorpsr);
- OSptr->ErrorP = errorp;
- goto TidyCommon;
- }
-
- case 0x94: /* Data abort */
- {
- ARMword addr = state->Reg[14] - 8;
- ARMword cpsr = ARMul_GetCPSR (state);
- if (ARM26BITMODE)
- addr = addr & 0x3fffffc;
- ARMul_SetCPSR (state, ARMul_GetSPSR (state, cpsr));
- UnwindDataAbort (state, addr);
- if (addr >= FPESTART && addr < FPEEND)
- { /* in the FPE */
- ARMword sp, spsr;
- unsigned i;
-
- sp = state->Reg[13];
- state->Reg[13] += 64; /* fix the aborting mode sp */
- state->Reg[14] = ARMul_ReadWord (state, sp + 60); /* and its lr */
- spsr = ARMul_GetSPSR (state, state->Mode);
- state->Mode = ARMul_SwitchMode (state, state->Mode, spsr);
- for (i = 0; i < 15; i++)
- {
- ARMul_SetReg (state, spsr, i, ARMul_ReadWord (state, sp));
- sp += 4;
- }
- ARMul_SetCPSR (state, cpsr);
- state->Reg[14] = ARMul_ReadWord (state, sp) + 4; /* botch it */
- ARMul_SetSPSR (state, state->Mode, spsr);
- }
- else
- ARMul_SetCPSR (state, cpsr);
-
- /* and fall through to correct r14 */
- }
- case 0x95: /* Address Exception */
- state->Reg[14] -= 4;
- case 0x91: /* Undefined instruction */
- case 0x92: /* SWI */
- case 0x93: /* Prefetch abort */
- case 0x96: /* IRQ */
- case 0x97: /* FIQ */
- state->Reg[14] -= 4;
- TidyCommon:
- if (state->VectorCatch & (1 << (number - 0x90)))
- {
- ARMul_SetR15 (state, state->Reg[14] + 8); /* the 8 is the pipelining the the RDI will undo */
- ARMul_SetCPSR (state, ARMul_GetSPSR (state, ARMul_GetCPSR (state)));
- if (number == 0x90)
- state->EndCondition = 10; /* Branch through Zero Error */
- else
- state->EndCondition = (unsigned) number - 0x8f;
- state->Emulate = FALSE;
- }
- else
- {
- ARMword sp = state->Reg[13];
- ARMul_WriteWord (state, sp - 4, state->Reg[14]);
- ARMul_WriteWord (state, sp - 8, state->Reg[12]);
- ARMul_WriteWord (state, sp - 12, state->Reg[11]);
- ARMul_WriteWord (state, sp - 16, state->Reg[10]);
- state->Reg[13] = sp - 16;
- state->Reg[11] = ADDRSOFHANDLERS + 8 * (number - 0x90);
- }
- return (TRUE);
-
-/* SWI's 0x8x pass an abort of type x to the debugger if a handler returns */
-
- case 0x80:
- case 0x81:
- case 0x82:
- case 0x83:
- case 0x84:
- case 0x85:
- case 0x86:
- case 0x87:
- case 0x88:
- {
- ARMword sp = state->Reg[13];
- state->Reg[10] = ARMul_ReadWord (state, sp);
- state->Reg[11] = ARMul_ReadWord (state, sp + 4);
- state->Reg[12] = ARMul_ReadWord (state, sp + 8);
- state->Reg[14] = ARMul_ReadWord (state, sp + 12);
- state->Reg[13] = sp + 16;
- ARMul_SetR15 (state, state->Reg[14] + 8); /* the 8 is the pipelining the the RDI will undo */
- ARMul_SetCPSR (state, ARMul_GetSPSR (state, ARMul_GetCPSR (state)));
- if (number == 0x80)
- state->EndCondition = 10; /* Branch through Zero Error */
- else
- state->EndCondition = (unsigned) number - 0x7f;
- state->Emulate = FALSE;
- return (TRUE);
- }
-
- default:
- state->Emulate = FALSE;
- return (FALSE);
- }
-#endif
-#endif
-}
-
-#endif /* CYGNUS LOCAL: #if 1 */
-
#ifndef NOOS
#ifndef ASIM
\***************************************************************************/
unsigned
-ARMul_OSException (ARMul_State * state, ARMword vector, ARMword pc)
+ARMul_OSException (ARMul_State * state ATTRIBUTE_UNUSED, ARMword vector ATTRIBUTE_UNUSED, ARMword pc ATTRIBUTE_UNUSED)
{ /* don't use this here */
return (FALSE);
}
#endif
-/***************************************************************************\
-* Unwind a data abort *
-\***************************************************************************/
-
-static void
-UnwindDataAbort (ARMul_State * state, ARMword addr)
-{
- ARMword instr = ARMul_ReadWord (state, addr);
- ARMword rn = BITS (16, 19);
- ARMword itype = BITS (24, 27);
- ARMword offset;
- if (rn == 15)
- return;
- if (itype == 8 || itype == 9)
- {
- /* LDM or STM */
- unsigned long regs = BITS (0, 15);
- offset = 0;
- if (!BIT (21))
- return; /* no wb */
- for (; regs != 0; offset++)
- regs ^= (regs & -regs);
- if (offset == 0)
- offset = 16;
- }
- else if (itype == 12 || /* post-indexed CPDT */
- (itype == 13 && BIT (21)))
- { /* pre_indexed CPDT with WB */
- offset = BITS (0, 7);
- }
- else
- return;
-
- if (BIT (23))
- state->Reg[rn] -= offset * 4;
- else
- state->Reg[rn] += offset * 4;
-}
-
-/***************************************************************************\
-* Copy a string from the debuggee's memory to the host's *
-\***************************************************************************/
-
-static void
-getstring (ARMul_State * state, ARMword from, char *to)
-{
- do
- {
- *to = (char) ARMul_ReadByte (state, from++);
- }
- while (*to++ != '\0');
-}
#endif /* NOOS */
projects / external / binutils.git / commitdiff